11th Lincoln leaf discovered

Published 06/11 2013 10:24PM

Updated 06/12 2013 01:17PM

NORMAL -- Two professors from Illinois State University made a unique discovery about our country's 16th president. They stumbled across a piece of history while looking through old math documents at Harvard.

They found a leaf from a book written by Abraham Lincoln in the 1820's. Historians thought only ten leaves still existed, but this would make the eleventh. The pages from the math book are possibly the oldest surviving works in Lincoln's own handwriting.

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